Operating means for speed-indicators.



Patented- Def-:.- 2'3, 1902.

nvr/Nros flare/zeef eZ/y An ys (Application flied Nov, 14, 1901.)-

c E KELLY OPERATING MEANS FOB'SPEED INDIGTRS. K

wm/Essgs UNTTnn STATES PATENT rnicn.

CLARENCE E. KELLY, OF ANDERSON, INDIANA, ASSIGNOR OF ONE-HALF TO WILLIAMH. FORSE, JR., OF ANDERSON, INDIANA.

OPERATING MEANS FOR SPEED-INDICATORS.A

SPECIFICATION forming part of Letters Patent No. 716,722, dated December23, 1902. Application filed November 14, 1901. Serial No. 82,206. (Nomodel.)

To @ZZ whorrt it may concern.:

Be it known that 1, CLARENCE E. KELLY, a citizen of the United States,and a resident of Anderson, in the county of Madison and-State ofIndiana, have invented a new and Improved Operating Means forSpeed-Indicators, of which the following is a full, clear, and exactdescription.

This invention relates to a means for transmitting movement to aspeed-indicating device-such, for example, as that disclosed in mycopending application, Serial No. 82,203, filed November 14, 1901.

This specification is a specific description of two forms of theinvention,while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of referencepindicatecorresponding parts in all the views.

Figure 1 is a side view of the invention. Fig. 2 is a top view thereof.Fig. 3 is a section showing the interior of the casing, and Fig. 4 is asimilar view showing a modified form of the invention. i

In the drawings, ct may be taken to indicate any known means forimparting a longi-4 tudinal movement to the shaft a', such movementbeing in time with the movement of the part whose speedris to bemeasured. An example of such means ct may be seen in my copendingapplication for patent on speed-indicators, Serial No. 79,169, filedOctober 18, 1901.

Referring to Figs. 1, 2, and 3, the shaft o. extends into a casing b,which casing is held stationary by a clamp or bracket f, and from thecasing b a shaft c extends at right angles to the shaft a. This shaft cis adapted to be turned to transmit its movement to the speedindicatorproper. (Not shown.) On the shaft c, within the casing b, is an arm c',and this arm is engaged by the shaft a', so that upon thereciprocationof this shaft the shaft c will be turned. d indicates aleaf-spring which bears against a pin a2 on the shaft a. The tension ofthis spring d is controlled by a cam e., fastened on an arbor c. Thearbor is mount-ed to turn in the casing h and is provided (see Fig. 2)with a finger e2, located outside of the casing b, but within anauxiliary glass-covered case e3. (See Figs. 1 and 2.) The top of thecasing c3 is removably held in place by screws or other fasteningdevices c, and by removing this top the finger c2 may be reached and thecam e adjusted, so as to vary the tension of the spring cl in accordwith the conditions under which the wheel a, is rotated.

' Fig. 4 illustrates a modification of the invention, in which the shafto. of the wheel o'. acts on a bell-crank lever c2. This lever isfulcrumed at the point c3 and has a toothed sector c4 meshed with apinion c5 on the shaft c. d' indicates a helical spring which isconnected to the bellbranl; lever c2 and serves the function of thespring cl in Figs. 1, 2, and 3, before described. This spring isadjusted by means of an arbor e5, to which its inner end is attached,such arbor being arranged exactly the same as the arbor e', beforedescribed.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. An operating means for speed-indicators,comprising a casing or support,a shaft mounted to reciprocate therein,means for moving said shaft inward, a spring tending to move the shaftoutward, a second shaft for transmitting the movement of the first-namedshaft, said second shaft being mounted in the casi-ng at an angle to thefirst shaft, means connecting the two shafts to transmit to the secondshaft a rocking movement, means forv varying the tension of the spring,said means including an arbor mounted in the casing and extendingoutward therefrom, and a finger attached to the arbor outside of thecasing to permit manually operating the same.

2. An operating means for speed-indicators, comprising a casing orsupport,a shaft mounted to reciprocate therein, means for moving theshaft inward, aspringA tending to move the shaft outward, a second shaftfor transmitting vthe movement of the firstnamed shaft, said secondshaft-being mounted in the casing at an angle to the first shaft, meansconnecting the two shafts to transmit to the second shaft arochingmovement, means for varying the tension of the spring, said meansincluding an arbor mounted in the casing and IOO extending outwardtherefrom, a finger atname to this specification in the presence oftaehed to the arbor outside of the casing to per-v two subscribingwitnesses. mit manually operating the same, and an auxiliaryoasingoarried byhthe first-named casing CLARENCE E' KELLY' 5 and havinga removable top or cover, said Witnesses:

nger being located in the auxiliary casing. MARTIN L. CROMES,

In testimony whereof I have signed my MARC RYAN.

